fluorescent lamp

noun

1. a tubular electric discharge lamp in which light is produced by the fluorescence of phosphors coating the inside of the tube.

fluorescent lamp

noun

1. a type of lamp in which an electrical gas discharge is maintained in a tube with a thin layer of phosphor on its inside surface. The gas, which is often mercury vapour, emits ultraviolet radiation causing the phosphor to fluoresce
2. a type of lamp in which an electrical discharge is maintained in a tube containing a gas such as neon, mercury vapour, or sodium vapour at low pressure. Gas atoms in the discharge are struck by electrons and fluoresce

fluorescent lamp

/ fl-rĕs′ənt /

1. An electric lamp that produces light through fluorescence. In most fluorescent lamps, a mixture of argon and mercury gas contained in a glass bulb is stimulated by an electric current, producing ultraviolet rays. These rays strike a fluorescent phosphor coating on the interior surface of the bulb, causing it to emit visible light. Fluorescent lamps are much more efficient than incandescent lamps because very little energy is lost as heat.
2. Compare incandescent lamp

Word History and Origins

Origin of fluorescent lamp¹

First recorded in 1895–1900

Example Sentences

When he has a spare moment, he moves to the back of his cluttered shop and turns on the fluorescent lamp hanging above a small table.

From Washington Times

"If your home lacks natural light, you can try placing your plant directly under a fluorescent lamp or plant grow light during the day."

From Fox News

A “provider” was up to a lot more than the guy who stuck seedlings under a fluorescent lamp in his parents’ basement.

From Salon

Yet I imagined Ade Coker and the rest of the staff in an office beneath the ground, a fluorescent lamp flooding the dark damp room, the men bent over their desks, writing the truth.

From Literature

She has facilitated the construction of a new tin shed for the horse, which has been fitted out with two water-cooled fans, a mosquito net and fluorescent lamp.

From BBC